Cholchol Formation
Cholchol Formation Stratigraphic range: Middle–Upper Miocene | |
---|---|
Type | Geological formation |
Underlies | Pliocene and Pleistocene alluvial fans and volcaniclastic deposits |
Overlies | Bahía Mansa Metamorphic Complex Coastal Batholith of central Chile Mesozoic sediments |
Thickness | 150–200 m (490–660 ft) |
Lithology | |
Primary | Claystone, sandstone, tuff, calcarenite, calcirudite |
Location | |
Coordinates | 38°00′S 72°00′W / 38.0°S 72.0°WCoordinates: 38°00′S 72°00′W / 38.0°S 72.0°W |
Region | Araucanía Region |
Country | ![]() |
Type section | |
Named for | Cholchol |
Named by | |
Year defined | 1968 |
![]() ![]() Cholchol Formation (Chile) |
Cholchol Formation (Spanish: Formación Cholchol) is a geological formation composed of sediments that were deposited during the Miocene in the of south–central Chile. The sediments were deposited in a marine environment.[1]
References[]
- ^ Elgueta, Sara (1990). "Sedimentación marina y paleogeografía del Terciario Superior de la Cuenca de Temuco, Chile". Actas. Segundo Simposio sobre el Terciario de Chile (in Spanish). Santiago, Chile: Departamento de Geociencias, Facultad de Ciencias, Universidad de Concepción. pp. 85–96.
Categories:
- Geologic formations of Chile
- Miocene Series of South America
- Neogene Chile
- Shale formations
- Sandstone formations
- Tuff formations
- Geology of Araucanía Region